Slides in this set

Slide 1

Key terms· Force something that can cause a change in motion. It is measured in metres per seconds squared (kg/ms-2).· Displacement the shortest straight line measurement between two points.· Velocity (ms-1) the rate of change of displacement or displacement ÷ time. It is measured in metres per second.…read more

Slide 2

Key terms· Speed the time taken to travel a certain distance or distance ÷ time· Acceleration (ms-2) the rate of change of velocity or the difference between the final and initial velocities divided by the time taken. Like force it is measured in metres per second squared.· Deceleration a negative change in velocity over time (negative acceleration)…read more

Slide 3

Vectors and Scalars· Scalar a quantity that has a single dimension (magnitude)· Vector a quantity that has two dimensions (magnitude and direction)…read more

Slide 4

Key terms· Air resistance friction between a body and air particles· Gravity the force of attraction between two bodies; force pulls objects towards the centre of the earth· Inertia the reluctance to change the state of motion…read more

Slide 5

Key terms· Momentum the quantity of motion of a body Mass X Velocity = Momentum· Ground reaction force the equal and opposite force given to a performer who exerts muscular force into the ground· Impulse the effect of a force acting over a period of time. Force X Time = Impulse…read more